Hi guys. I’ve created certificates by certbot, but they are not valid for some reason.
Could you please suggest what is wrong here?
I’ve provided all the needed information below. If you need more details, please feel free to ask.

It produced this output:
ARNING: Dependency conflict: an older version of the ‘docker-py’ package may be polluting the namespace. If you’re experiencing crashes, run the following command to remedy the issue:
pip uninstall docker-py; pip uninstall docker; pip install docker
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for stage.timebarter.co
http-01 challenge for www.stage.timebarter.co
Using the webroot path /var/www/certbot for all unmatched domains.
Waiting for verification…
Cleaning up challenges

IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/stage.timebarter.co/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/stage.timebarter.co/privkey.pem
Your cert will expire on 2019-05-16. To obtain a new or tweaked
version of this certificate in the future, simply run certbot
again. To non-interactively renew *all* of your certificates, run
"certbot renew"